1. Where are we in Integrated modeling? S. Jardin Mature 1½ D evolution code packages exist with reduced modules for most processes –Japan: BPSI: (TASK, TOPICS) – EU: Integrated Tokamak Modeling Task Force, JET initiative (ASTRA,CRONOS,JETTO,RITM), DINA/CRONOS coupling – US: NTCC-PTRANSP, TSC/TRANSP, BALDUR, ONETWO, CORSICA More fundamental physics models exist in most areas: – 5D Gyrokinetics – Nonlinear Extended MHD with energetic particle effects – Full wave RF codes coupled with Fokker-Plank solvers – Edge/PSI codes

2. Where do we want to go ? Hierarchy of codes with range of speed/physics – Reliable validated transport-timescale code packages with improved modules for all processes with reliable ranges of validity Improved fundamental first principles nonlinear models that can quantitatively reproduce existing experimental results and future regimes – Coupled fundamental models to examine strongly interacting physics issues RF stabilization of MHD turbulence effects on MHD modes core/edge/materials coupling ….. Code Applications Experimental preparation Very fast codes for real time forecasting and control Post-discharge analysis

3. How do we get there ? Encourage each of the parties to continue their modeling projects – Improve documentation and standards – Interact with Computer Science and math communities – Periodic workshops devoted to comparative modeling and developing international standards Increased emphasis on Verification and Validation at all levels – individual physics modules – entire reduced model code predictions – first principles codes Standardized discharges for comparative analysis Effort requires continued support and recognition by funding agencies